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Complexation reactions in aquatic systems : an analytical approach / J. Buffle, translators S.P. Kounaves, A. Kounaves and R.S. Altman
J. Buffle
- Vol. 1990, Iss: 1990, pp 1-99
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The article was published on 1990-01-01 and is currently open access. It has received 812 citations till now.read more
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WHAM—a chemical equilibrium model and computer code for waters, sediments, and soils incorporating a discrete site/electrostatic model of ion-binding by humic substances
TL;DR: The WHAM (Windermere Humic Aqueous Model) as mentioned in this paper is a simple inorganic speciation code for aqueous solutions that combines Humic Ion-Binding Model V with a simple, inorganic inorganic specciation code.
Journal ArticleDOI
Ion binding to natural organic matter : competition, heterogeneity, stoichiometry and thermodynamic consistency
David G. Kinniburgh,Willem H. van Riemsdijk,Luuk K. Koopal,Michal Borkovec,Marc F. Benedetti,Marcelo Javier Avena +5 more
TL;DR: The NICCA-Donnan model as mentioned in this paper is a semi-empirical model that is similar to the NICA-donnan model except that it introduces an additional degree of scaling that ensures thermodynamic consistency and allows for variable stoichiometry of binding, which implicitly accounts for the large degree of chemical heterogeneity of humic particles.
Journal ArticleDOI
A unifying model of cation binding by humic substances
TL;DR: Model V describes the binding of ions by humic substances in terms of complexation at discrete sites, modified by electrostatic attraction and/or repulsion, and also takes account of nonspecific binding due to counterion accumulation.
Journal ArticleDOI
A Generalized Description of Aquatic Colloidal Interactions: The Three-colloidal Component Approach
TL;DR: In this article, the physicochemical properties of the different groups of colloids are described, and the role of each colloid class is discussed with respect to homoaggregation (aggregation within a given colloid) and hetero-aggregation among different colloid types.
Journal ArticleDOI
The effect of humic acid adsorption on pH-dependent surface charging and aggregation of magnetite nanoparticles
Erzsébet Illés,Etelka Tombácz +1 more
TL;DR: The pH-dependent adsorption of humic acid (HA) on magnetite and its effect on the surface charging and the aggregation of oxide particles were investigated and nanoparticles are stabilized in a way of combined steric and electrostatic effects.
References
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Dissolved Cu(II) Speciation in Unpolluted Soil Solutions of a Planosolic Horizon
TL;DR: In this article, the authors used differential pulse anodic stripping voltammetry (DPASV) to study the speciation of dissolved Cu(II) in unpolluted soil solutions from different horizons.
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Lability of nanoparticulate metal complexes in electrochemical speciation analysis
TL;DR: In this paper, the notion of lability for nanoparticulate metal complexes, M-NP, reflects the ability of the MNP to maintain equilibrium with the reduced concentration of the electroactive free M2+ in its diffusion layer.
Book ChapterDOI
Characterizing Autochthonous Iron Particles and Colloids—the Need for Better Particle Analysis Methods
TL;DR: The complexity involved in studying the biogeochemical cycles of particles and colloids in freshwaters is the result of several different factors: the great number of appearance and disappearance fluxes of these species, the difficulties associated with distinguishing and measuring those fluxes, and the difficulty of sampling colloidal particles without denaturation before their characterization.
Journal ArticleDOI
Additional evidence of the operational character of the lability of complexes of copper(II) with simple organic ligands
TL;DR: In this article, a fixed analytical window of observation, 5 μmol l − 1 free copper and 100 μmol L − 1 total copper, but methods different in nature, operation mode and time scale were applied, in parallel, at pH 6.50 and 16 °C, to solutions with copper complexes of very different thermodynamic stabilities.
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In situ monitoring of electroactive species by using voltammetry at microelectrodes
TL;DR: In this article, a gold-coated platinum microelectrodes were employed for the in situ determination, in soils and porewater of sediments, of redox key species of environmental interest.